Would a 6c mouthpiece help me get a louder sound for my saxophone?

Question:the 4c i use right now limits my air and makes it really hard to get a hard to get a loud sound...

Best Answer - Chosen by Asker: the 4c i use right now limits my air and makes it really hard to get a hard to get a loud sound...

A 4c mouthpiece is a student mouthpiece. I know its hard to get a lot of sound out of it but a Yamaha mouthpiece is not the best choice under any circumstance. If you really do want to get far with saxophone, I recommend a Selmer C* or a Vandoren mouthpiece.

If not, you just need to be able to move a lot of air quickly. To help with this, I recommend running to improve how much air you can hold. Over time, you can play fuller and louder. I used to be at the point where I could hardly play higher than 40 decibels, now I can fill up a professional football stadium on my own and reach up to over 100 decibels in an enclosed room

Possibly. It depends on the manufacturer. But what you want to do to get a loud sound is practice your long tones and breath support as that will do much more than a mouthpiece can do, and with much better results than a mouthpiece.

Are you sure it's the mouthpiece?
What have you done to check if it's your mouthpiece causing you problems?

My list of suggestions before you shell out the money for a new mouthpiece:
1) Make sure your embouchure is correct. If it's hard for you to produce a stronger tone, you might be pinching your embouchure, making air flow restricted.
2) Are you using adequate breath support? Are you using faster air instead of relying solely on "blowing harder"? There is a difference.
3) What about your reeds? Have you experimented with different reeds, brands, and strengths? Your reed strength might be too hard for you.
4) Is your ligature in the best possible location? Have you tried using new ligatures? Just visit the music shop to play around with new ones.

Once you've done all of that, then you could try a new mouthpiece. Visit your music shop to ask about experimenting with new ones so you can hear how different ones sound and how they affect your tone quality. Of all the brands, make sure you buy a hard rubber mouthpiece and not plastic.